Steam-pump



(No Model.) I I 2 Sheets-Shestl.

M. P. BAGLEY 86 J. C. DAWSON.

No. 291,021. Pa 'ented Jan. 1, 1884 m'iiexgea' I Jamal (Z0717;

, 2 Sheets-Sheet 2. MP1. BAGLEY & J. O. DAWSON.

' STEAM PUMP.

Patented Jan. 1, 1884;

(No Model.)

ward 66 :3

g UNITED STATES; A T

Moses r. EAGLE-Y Ann JOSEPH c Dawson, or MOUNT VERNOX, ILLINOIS.

STEAM-PUMP.

SPEGIFICATION forming part of Letters Patent No. 291,021, dated Jannary 1, 1884.

Application filed June 52131883. (No model.)

To all whom it may concern:

Be it known that we, Mosns F. BAGLEY and Jos. G. DAWsN,of Mount Vernon, county of Jefferson, and State of Illinois, have invented a new and Improved Steam-Pump, and we hereby declare the followingto be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a plan view of the pump. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a vertical section on the line y 3 of Fig. 1. Fig. 4is a side elevation, showing the steam-valve and conduction-pipes. Figs. 5, 6, 7, and 8 are details to be referred to.

Our invention relates to steam-pumps; and it consists in a cylinder, in which works a piston-rod having two pistons, and an intermediate reciprocating valve and proper ports, whereby steam admitted alternately behind the pistons will raise. and force water, as will hereinafter more fully appear by description in detail.

In order that those skilled in the art may make and use our invention, we will proceed to describe the manner in which we have carried it out.

In the said drawings, A is a cylinder provided with a steam-chest, B, and steam-passages a a, leading from the steam-chest to the ends of the cylinder and next to the heads 0. A sliding valve, D, alternately connects the steam passages or pipes E with the ports I) b, the one disconnected with the steam-port being always the exhaust-port, the exhauststeam escaping through pipe (1. The valverod 6 is, by means of a tappet, e, thrown in proper time.

Across the center of the cylinder is secured an abutment or brace, F, centrally pierced at f for the passage of the piston-rod G. The abutment F may be fastened by bolts through the sides of the cylinder, as seen at g g, or by any other desirable means. 7

Straddling the abutment F is a sliding valve, H, which controls the water-supply from the water-ingress pipe I. This valve consists of two heads, h h, on opposite sides of the abutment F, and connected at their tops by a curved piece, 45, and near their bottoms by narrow strips i t". The heads h h are packed to fit the cylinder water-tight, and have central openings, j j, throughvwhich passes the piston-rod, so that the valve slides upon the piston-rod until one of the heads h h brings up against the abutment F.

In a horizontal line with openings jj the heads h It are provided with openings L k, which serve alternately in pairs as ingress ports for the water passing into the cylinder, and act in a manner hereinafter described. The piston-rod is provided with two pistons,

L L, which are arranged at proper distances, to have them work in time with the proper stroke. 6 5

On top of the cylinder is a water-discharge chamber, N, having an air-chamber, M, and a discharge-pipe, 0.

At the ends of the chamber N ports Z Z com municate with the cylinder, and are arranged at such a distance apart as to be alternately uncovered by the throw of valve H, and the in gress-pipe I for the water-supply always re mains open between the heads h h. (See Fig. 2.) Whenever the valve H, at the extreme of 7 5 the throw, brings up against the abutment F, the openings k k in the contiguous head of the valve are closed by said abutment. The ports I? I? serve alternately as ingress and exhaust ports for the steam.

The operation is as follows, supposing that the cylinder between one of the pistons and one of the valve-heads h h is filled with wa ter raised on the last stroke by the vacuum: Steam is admitted behind the piston in the end 8 5 of the cylinder containing water, and as said piston begins to move it forces the contained water against valve H, and throws it against abutment F. This closes openings 70 7s and opens the port next to the end containing the 0 water, which leads to chamber N, whereby the pressure of the steam on the piston forces the water into said chamber and out at pipe 0. Meantime the movement of the other piston passing away from the center of the cylinder 9 5 creates a vacuum, which draws the water up ingress-pipe I, through openings k k, which are not against the abutment F, and into the cylinder, as shown by the arrows, Fig. 2, until it is filled. Then the tappet throws the 100 valve, and the reverse stroke is made, repeating the operation.

It is evident that any desired form of steamvalve or any desired tappet or form of ports may be used without departing from the spirit of our invention.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. In a steam-pump, a cylinder provided with a steanrchest, a valve, and proper steam- Ways, in combination with two pistons moving simultaneously, and an intermediate waterway Valve operated bythe pressure on the water by each piston alternately, substantially as set forth.

2. The cylinder provided with ports 1?, and ingresspipe I, in combination with valve H, provided with openings L 7., and stationary abutment F, all constructed, arranged, and operated as set forth.

MOSES F. .BAGLEY. JOSEPH (J. DA'WSOX.

\Vitnesses:

A. \V. PLUMMER, (l. L. RI'TIIERT-OR'L. 

